Remove interface_impl.h and error_handler.h usage from chromium

mojo/common/weak_binding_set.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_COMMON_WEAK_BINDING_SET_H_
 #define MOJO_COMMON_WEAK_BINDING_SET_H_
 
 #include <algorithm>
 #include <vector>
 
@@ skipping 10 matching lines @@
 template <typename Interface>
 class WeakBindingSet {
  public:
   WeakBindingSet() {}
   ~WeakBindingSet() { CloseAllBindings(); }
 
   void set_connection_error_handler(const Closure& error_handler) {
     error_handler_ = error_handler;
   }
 
-  // NOTE: Deprecated. Please use the method above.
-  // TODO(yzshen): Remove this method once all callsites are converted.
-  void set_error_handler(ErrorHandler* error_handler) {
-    if (error_handler) {
-      set_connection_error_handler(
-          [error_handler]() { error_handler->OnConnectionError(); });
-    } else {
-      set_connection_error_handler(Closure());
-    }
-  }
-
   void AddBinding(Interface* impl, InterfaceRequest<Interface> request) {
     auto binding = new WeakBinding<Interface>(impl, request.Pass());
     binding->set_connection_error_handler([this]() { OnConnectionError(); });
     bindings_.push_back(binding->GetWeakPtr());
   }
 
   void CloseAllBindings() {
     for (const auto& it : bindings_) {
       if (it)
         it->Close();
@@ skipping 53 matching lines @@
   Binding<Interface> binding_;
   Closure error_handler_;
   base::WeakPtrFactory<WeakBinding> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WeakBinding);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_COMMON_WEAK_BINDING_SET_H_